DFX Intelligence

Peter Kolchinsky

Managing Partnerat RA Capital Management, LP· Woburn, MA

As of 2026-10-01 · this person's identity; each section below carries its own date

Current roles: 1
Investments attributed: 4
Board seats: 4

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As of 2026-10-01 · this person's identity; each section below carries its own date

5 additional roles and seats, 1 additional attributed investment

Every relationship, signal and contact on this record, with the source on each.

Includes 3 days of DFX Intelligence. Then $199/month unless canceled.

Nothing material in the last 365 days. Last change: 26 Feb 2025, Sits on 4 boards on record, the latest Terrestrial Bio on 26 Feb 2025.

Relationship network

12 connected entities4 observed investment recordsinvestment records 2012 to 2021

From the roles sources name this person in, the investments a source attributes to them, and the boards and funds Form D names them on.

Some relationships on this record are counted rather than named here. They open with the full profile.

Click any name or line for the investment records and sources behind it. Line weight is investment records together; dashed lines are inferred.

Reading the network

Organization
Company
Fund or vehicle

›How strength and recency are read

Venture relationships are not scored. Each line names its claim: a round led or joined, a board seat or a filing that names the firm, a listing on a portfolio page (dated by when DFX saw it, never by when the investment was made), a disclosed LP commitment, or a co-investor pair counted from observed participations. Observed means a named source says so; Derived means DFX counted it from observed rows; Inferred means a match that may be wrong.

Darker lines were active in the last 24 months or are current; lighter lines are older or undated.

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Which companies and boards is Peter Kolchinsky connected to?

How am I connected?

Name your firm, a company or a person, and DFX finds the published routes to Peter Kolchinsky: a shared portfolio company or board, a prior employer, a co-investor, a shared LP or service provider. Every step is a filed or published record with its source; none is a guess about who knows whom.

See how you connect to Peter Kolchinsky

Includes 3 days of DFX Intelligence. Then $199/month unless canceled.

Drawing the relationship network…

Roles

1 current, 0 past

RA Capital Management, LP Managing Partner
? to present · “team page: Peter Kolchinsky / Managing Partner”
Fact Firm website

Investments attributed to this person

Company	Round	Investor	Attribution	Date	Source
Icosavax	Form D equity offering · $99.7M	RA Capital Management, LP	strongly supported · board	Apr 7, 2021	Inference sec.gov
Calimmune	Form D equity offering · $15.9M	RA Capital Management, LP	strongly supported · board	May 28, 2015	Inference sec.gov
Cellscape Corp	Form D equity offering · $1.1M	RA Capital Management, LP	strongly supported · board	Sep 10, 2012	Inference sec.gov

Board seats and vehicles

4 boards, 7 vehicles

Terrestrial Bio, Inc. Director Feb 26, 2025 Fact
Icosavax board seat on a deal Apr 7, 2021 Inference
Calimmune board seat on a deal May 28, 2015 Inference
RA Capital Planetary Health Fund, LP Executive Officer Feb 9, 2024
RA Capital Nexus Fund , L.P. Director/Promoter Jul 12, 2019
RA Capital Nexus II Fund, L.P. Promoter Sep 29, 2020

Timeline

3 dated entries: events, attributed deals, board seats and role changes

Apr 7, 2021
Form D equity offering in Icosavax (RA Capital Management, LP)
Attributed investment Inference Icosavax Form D
May 28, 2015
Form D equity offering in Calimmune (RA Capital Management, LP)
Attributed investment Inference Calimmune Form D
Sep 10, 2012
Form D equity offering in Cellscape Corp (RA Capital Management, LP)
Attributed investment Inference Cellscape Corp Form D